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    • 3. 发明授权
    • Silver halide grains, light-sensitive photographic material containing
the same and method for preparing silver halide photographic emulsion
containing the same
    • US4758504A
    • 1988-07-19
    • US945306
    • 1986-12-22
    • Yukio OhyaSyoji MatsuzakaYasuo TosakaYoshihiko Suda
    • Yukio OhyaSyoji MatsuzakaYasuo TosakaYoshihiko Suda
    • G03C1/005G03C1/035G03C1/02
    • G03C1/035
    • Disclosed are silver halide grains which have crystal faces defined by Miller indices of (nnl) where n.gtoreq.2 and comprising a silver halide composition consisting substantially of silver chlorobromide; a light-sensitive silver halide photographic material having, on a support, light-sensitive silver halide emulsion layers at least one of which contain the above silver halide grains; and a method for preparing silver halide photographic emulsion containing the above silver halide grains having the steps of mixing a silver ion solution and a halide ion solution in the presence of a protective colloid and then forming and growing silver halide grains having a silver halide composition of 2 mole % or less of silver iodide, 1 to 99 mole % of silver chloride and 99 mole % or less of silver bromide, wherein the silver ion solution comprises an ammoniacal silver nitrate solution and formation and growing of the silver halide grains are carried out in the presence of at least one selected from the compounds represented by the formula (I), (II), (III) or (IV) shown below and the compounds having the recurring units represented by the formula (V) shown below: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be either the same or different, each represent a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, a derivative of an amino group, an alkyl group, a derivative of an alkyl group, an aryl group, a derivative of an aryl group, a cycloalkyl group, a derivative of a cycloalkyl group, a mercapto group, a derivative of an mercapto group or --CONH--R.sub.4 (R.sub.4 is a hydrogen atom, an amino group, a derivative of an alkyl group, a derivative of an amino group, a halogen atom, a cycloalkyl group, a derivative of a cycloalkyl group, an aryl group or a derivative of an aryl group), R.sub.1 and R.sub.2 may be bonded together to form a ring, R.sub.5 represents a hydrogen atom or an alkyl group, X represents a monovalent group formed by eliminating one hydrogen atom from the compounds represented by the formula (I), (II), (III) or (IV), and J represents a divalent linking group.
    • 7. 发明授权
    • Positive type silver halide color photographic light-sensitive material
for color proofing use
    • 正型卤化银彩色摄影感光材料,用于彩色打样
    • US5436117A
    • 1995-07-25
    • US340186
    • 1994-11-14
    • Keiichi HoshinoSusumu OhkawauchiYasuo TosakaYoshiyuki Nonaka
    • Keiichi HoshinoSusumu OhkawauchiYasuo TosakaYoshiyuki Nonaka
    • G03C1/43G03C1/485G03C1/83G03C7/30G03F3/10G03C1/46
    • G03F3/107G03C1/832G03C7/3003G03C7/3041
    • Disclosed is a positive type silver halide color photographic light-sensitive material comprising a support having thereon a mainly yellow image forming layer, a mainly magenta image forming layer and a mainly cyan image forming layer; wherein, when an exposure is conducted with 1/10 to 10 times an exposure amount giving minimum density of +0.2 on a first layer selected from said three layer after developing in the main spectra sensitivity region of the first layer, a second layer selected from said three layers is given lower density with said exposure than a density without said exposure; and after a photographic process comprising a color developing step, the mainly yellow, mainly magenta and mainly cyan image forming layers have the monochromatic yellow, magenta and cyan tones in toe portions thereof each of not less than 1.7. The silver halide color photographic light sensitive material is capable of providing a color proof improved in the approximation degrees of an image quality to a printed matter.
    • 公开了一种正型卤化银彩色摄影感光材料,其包括其上具有主要为黄色图像形成层,主要是品红色图像形成层和主要为青色图像形成层的支撑体; 其特征在于,在所述第一层的主光谱灵敏度区域显影之后,在从所述三层中选择的第一层上施加1/10〜10倍的给出最小密度的曝光量进行曝光的情况下,选自 所述曝光的三层被赋予的密度低于没有曝光的密度; 并且在包括彩色显影步骤的摄影处理之后,主要是黄色,主要为品红色和主要为青色的成像层的趾部中的单色黄色,品红色和青色色调各自不小于1.7。 卤化银彩色摄影感光材料能够提供改善印刷品的图像质量近似度的防色彩。
    • 9. 发明授权
    • Direct positive silver halide photographic material
    • 直接正卤化银照相材料
    • US4917991A
    • 1990-04-17
    • US210397
    • 1988-06-23
    • Yasuo TosakaKeiji OgiAtushi Kamitakahara
    • Yasuo TosakaKeiji OgiAtushi Kamitakahara
    • G03C1/485
    • G03C1/48576
    • A direct positive silver halide photographic material with an internal latent image-type silver halide emulsion layer that provides a direct positive image by a fogging treatment (for example, an overall exposure, or surface developing treatment in the presence of a fogging agent) after imagewise exposure. The silver halide particles which form the emulsion layer consist essentially of a core portion made of silver halide and having been chemically sensitized or doped with metal ions. There are provided a plural number of shell portions made of silver halide containing silver chloride. The chloride content of an inner shell adjacent to the outmost shell of the particles has a smaller amount of chloride content than that of the outermost shell. The photographic material is used by first imagewise exposing it to light, effecting overall fogging treatment on the silver halide particles and processing the exposed photographic material to produce the image.
    • 具有内部潜像型卤化银乳剂层的直接正性卤化银照相材料,其通过雾化处理(例如,在雾化剂存在下的总体曝光或表面显影处理)提供直接正像 曝光。 形成乳剂层的卤化银颗粒基本上由卤化银制成的核心部分组成,并已被化学增感或掺杂金属离子。 提供了多个由含有氯化银的卤化银制成的外壳部分。 与壳体的最外壳相邻的内壳的氯化物含量比最外层的氯化物含量少。 照相材料通过首先成像曝光使用,对卤化银颗粒进行总体雾化处理并处理曝光的照相材料以产生图像。
    • 10. 发明授权
    • Direct positive type light-sensitive silver halide photographic materials
    • 直接正型感光卤化银照相材料
    • US4863838A
    • 1989-09-05
    • US188647
    • 1988-05-02
    • Keiji OgiYasuo Tosaka
    • Keiji OgiYasuo Tosaka
    • G03C1/485
    • G03C1/48576
    • A direct positive photographic material having a support and a silver halide emulsion layer thereon contains internal latent image type silver halide grains. These grains have a core/shell structure and have not been previously fogged. Each grain comprises a conversion type silver halide core and a silver halide shell over the core.The layer would produce, when exposed for a given time upto one second and developed at 20.degree. C. for 4 minutes with a certain internal developing solution, a maximum density which is at least five times that obtained when the layer is similarly exposed and developed with a particular surface developing solution.
    • 其上具有支持体和卤化银乳剂层的直接正性照相材料含有内部潜像型卤化银颗粒。 这些颗粒具有核/壳结构,并且以前没有雾化。 每个晶粒包含核心上的转化型卤化银芯和卤化银壳。 该层将在一定时间内暴露一秒钟,并在一定的内部显影液中在20℃下显影4分钟时,该层的最大密度至少是当该层类似地暴露和显影时获得的五倍 具有特定的表面显影溶液。